Texas Instruments OMAPL138EZCE4

Overview

OMAPL138EZCE4 from Texas Instruments is a dual-core C6000™ DSP + ARM® SoC integrating a 456-MHz ARM926EJ-S RISC MPU and a 456-MHz C674x VLIW DSP, with 256KB L2 unified RAM/cache, 128KB shared RAM, and 1.8-V/3.3-V LVCMOS I/Os. It targets industrial portable navigation, smart grid substation protection, and biometric identification systems requiring deterministic real-time signal processing and robust OS support.

For engineers reviewing the OMAPL138EZCE4 datasheet, OMAPL138EZCE4 pinout, OMAPL138EZCE4 application, or OMAPL138EZCE4 equivalent, this page delivers verified core frequencies, cache architecture, EMAC/SATA/uPP peripheral capabilities, secure boot implementation, and validated alternative SoCs for migration or second-sourcing in safety-aware embedded designs.

Technical Context

The OMAPL138EZCE4 implements a tightly coupled dual-core architecture where the ARM926EJ-S handles OS services, UI, and control tasks while the C674x DSP executes high-throughput fixed- and floating-point signal processing-supporting IEEE SP/DP arithmetic, 3648 MIPS, and 2746 MFLOPS at 456 MHz. Memory coherency is managed via shared L2 and 128KB RAM accessible by both cores and EDMA3.

Its subsystem-level integration includes an EDMA3 controller with 64 independent DMA channels, a PRUSS with two 32-bit RISC cores (4KB IRAM + 512B DRAM each), and hardware-accelerated peripherals: SATA I/II (3.0 Gbps), 10/100 EMAC with MII/RMII, USB 2.0 OTG + USB 1.1 OHCI, McASP/McBSP audio interfaces, and eHRPWM/eCAP timing modules-all clocked from configurable PLLs and managed by a centralized PSC.

Key Specifications

Pinout & Package

OMAPL138EZCE4 is housed in a 361-ball NFBGA package (ZCE suffix) with 13.0 mm × 13.0 mm body size and 0.65-mm ball pitch, optimized for thermal performance in industrial temperature-grade applications.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar dual-core DSP+ARM applications.

Compared with OMAPL138ZCE, OMAPL138EZCE4 adds extended temperature qualification and identical dual-core performance; versus AM1808ZCE0, it delivers integrated hardware-accelerated DSP compute essential for autonomous edge analytics-eliminating latency and power penalties of external coprocessors.

Availability

OMAPL138EZCE4 is available at Aetrix Electronics and suitable for industrial portable navigation, smart grid substation protection, and biometric identification systems requiring stable component supply across long product lifecycles and harsh environmental conditions.

Supply support for OMAPL138EZCE4 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Texas Instruments is a global semiconductor company headquartered in Dallas, Texas, delivering analog and embedded processing solutions for industrial, automotive, and communications markets since 1930.

The OMAP-L138 product line was engineered to bridge high-performance DSP compute with ARM-based system control in resource-constrained industrial edge devices-prioritizing low-power dual-core integration, peripheral richness, and security-critical boot integrity.

FAQ

What is the maximum operating frequency of the OMAPL138EZCE4 ARM and DSP cores?

The OMAPL138EZCE4 operates both its ARM926EJ-S and C674x DSP cores at a maximum frequency of 456 MHz when supplied with 1.3V core voltage. This frequency is validated across the extended temperature range (–40°C to 105°C) and enables deterministic real-time execution for industrial control and signal processing workloads. The OMAPL138EZCE4 datasheet specifies this rating under Recommended Operating Conditions in Section 5.3.

Does the OMAPL138EZCE4 support secure boot, and what cryptographic algorithms does it use?

Yes, the OMAPL138EZCE4 implements TI Basic Secure Boot using AES-128 for boot image encryption and SHA-256 for image authentication. A device-specific 128-bit cipher key-generated by an NIST-800-22 certified RNG-is used to protect user keys. This ensures that only cryptographically signed and encrypted firmware can execute, meeting requirements for tamper-resistant deployment in biometric and smart grid applications. The OMAPL138EZCE4 Security User's Guide documents the full flow.

What memory resources are available on-chip for the OMAPL138EZCE4?

The OMAPL138EZCE4 integrates 256KB of unified L2 RAM/cache, 32KB L1P program RAM/cache, 32KB L1D data RAM/cache, 16KB instruction cache, 16KB data cache, 8KB vector table RAM, 64KB ROM, and 128KB of dedicated shared RAM accessible by ARM, DSP, and EDMA3. This hierarchy enables low-latency inter-processor communication and high-bandwidth signal processing without external memory bottlenecks. All memory maps are defined in the OMAPL138EZCE4 Technical Reference Manual.

Which high-speed interfaces does the OMAPL138EZCE4 support for connecting to external storage or FPGAs?

The OMAPL138EZCE4 supports SATA I/II (1.5/3.0 Gbps) with hardware NCQ for mass storage, and the Universal Parallel Port (uPP) for FPGA or data converter interfacing-with programmable 8–16-bit dual-channel transfers, START/ENABLE/WAIT handshaking, and single/dual-data-rate modes. These interfaces eliminate external bridge ICs in video capture and industrial DAQ systems. Interface electrical specs and timing diagrams are detailed in OMAPL138EZCE4 Sections 6.14 and 6.26.

How does the OMAPL138EZCE4 manage real-time I/O tasks without burdening the main CPU cores?

The OMAPL138EZCE4 uses its Programmable Real-Time Unit Subsystem (PRUSS) to offload deterministic I/O-two independent 32-bit PRU cores each with 4KB instruction RAM and 512 bytes data RAM handle GPIO bit manipulation, PWM generation, and protocol translation. Additionally, three eCAP modules provide hardware timestamping with <50ns jitter, and two eHRPWM modules deliver dead-band–protected pulse outputs. These capabilities are documented in OMAPL138EZCE4 Sections 6.33, 6.28, and 6.29.